Classification / Names
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335); robertsi: Named for Tyson R. Roberts whose knowledge of the African waterways and their ichthyofauna has been of great value to many studies of the freshwater fishes of Africa (Ref. 52346).
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
; स्वच्छ जल, अलवण जल बेनथोपिलाजिक. Tropical; 22°C - 25°C (Ref. 2060)
Africa: mainstream middle Congo River, Ubangi, Uele, Kotto, Mongala (Ref. 52346), Itimbiri, Aruwimi (Ref. 52346, 106245) and Wagenia Falls (Ref. 106290) (middle Congo River basin) in Democratic Republic of the Congo and Central African Republic. Also a single record from the river Kama-Elila (Lualaba tributary) in Democratic Republic of the Congo (Ref. 52346).
आकार / वज़न / Age
Maturity: Lm ?  range ? - ? cm
Max length : 21.1 cm SL पुल्लिंग / अलिंग; (Ref. 52346)
Short description
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय रीढ़ (सम्पूर्ण) : 14 - 16; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 12 - 15; गुदा कांटा: 3; ऐनल सौफट रेज़: 7 - 8; जानवरों की रीड़ का जोड़: 28 - 29. Diagnosis: upper lateral line extending full length of dorsal fin base and descending a row before proceeding length of three or more scales; 14-15 gill-rakers, widely spaced along lower limb of first arch; 36-40 lateral line scales; head length 29.0-35.7% of standard length; usually 29 vertebrae; inferior vertebral apophysis short and oriented caudad rather than of standard Tylochromis type (Ref. 52346).
Opportunistic benthic macrophage (Ref. 52346). Mainly feeds on plants and insects (as well as their larvae) (Ref. 52307). Female mouthbrooder (Ref. 52307, 52346) that does not pair-bond (Ref. 52307).
Life cycle and mating behavior
Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा
Stiassny, M.L.J., 1989. A taxonomic revision of the African genus Tylochromis (Labroidei, Cichlidae); whith notes on the anatomy and relationships of the group. Ann. Mus. R. Afr. Cent. Ser. 8, Sci. Zool., 258:1-161. (Ref. 52346)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.4 ±0.22 se; based on food items.
लौटाव (Ref.
120179): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).